CA2133975C - Drip dispenser - Google Patents
Drip dispenser Download PDFInfo
- Publication number
- CA2133975C CA2133975C CA002133975A CA2133975A CA2133975C CA 2133975 C CA2133975 C CA 2133975C CA 002133975 A CA002133975 A CA 002133975A CA 2133975 A CA2133975 A CA 2133975A CA 2133975 C CA2133975 C CA 2133975C
- Authority
- CA
- Canada
- Prior art keywords
- cover
- dispenser
- drip
- hinge
- backplate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
- E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
- E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
- E03D9/032—Devices connected to or dispensing into the bowl
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K5/00—Holders or dispensers for soap, toothpaste, or the like
- A47K5/06—Dispensers for soap
- A47K5/12—Dispensers for soap for liquid or pasty soap
- A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
Abstract
A drip dispenser (1) incorporating (a) a backplate (5) for securing the dispenser (1) to a support, the backplate (5) having a first longitudinal edge (21) having at least one cover lock (27), a hinge bearing longitudinal edge (23), at least one hinge locking port (37), and a liquid container support (31); (b) a liquid reservoir (7) attached to the backplate (5), the liquid reservoir (7) having a drip outlet (51) for dispensing a liquid from the dispenser (1); and (c) a cover (3) having a first longitudinal edge (45), a hinge bearing longitudinal edge (41) having at least one hinge (9), and at least one cover lock receptacle (47) is provided.
Description
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W~ 93121966 _ ~ ~ ~ ~ ~ °~ ~ PG'd'/i1S93/fl3678 1, S ~ , z~~xp ~xsp~as~~
~ ~xog T~ ~rrr=oar Thin invention relates to a drip dispenser for dispensing fluids, particularly detergents, antiseptics, and fragrance enhancers, to t~ilets and the life.
1 S B~I,~G~.o'~'b~ of T» TIOh1 Most drip dispensers include a backplate and a front cover. The front cover is wither hinged to the backplate by a single risible and acc~s~ible hinge or is removable. The cover conceals a reservoir which receives a liquid to be dispensed , 20 and incorporates a delivery system that allows,the liquid to be dispensed slowly, nar~nally a drop at a time. because most drip dispensers have more than oxae mad~r component, the joining of these components with some tie of fastening device or material i~ typically required.
~5 'Va~:ious attempts hare beer, made to overcome the disad~raa~tages of ~nulti-piece coaa~truc~ion. Coe~cially av~~.l~ble dispensers inco~pora~~: a gix~gle living hinge to achieve a single m~lding c~bjee~ive. However, this hinge, which attaches a backplate to a cover; is visible wrhen the dispenser 90 is in a mounted positiono Additionally, there is an unsightly opening betv~een the cover and the baekplate aloag the side apposite to the hinge and along the top and the bottox~ of the dispenser. The hinge becoanes iracreasingly unsightly with age ~::.
and V~~ar a 35 Tampering is axao~her problem to rah3ch drip dispensers S
are susceptible. Tampering typically results in loss of the contents of the dispenser and,~or damage to the dispenser ;.:.. . - , ... . ,.
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~Y~ 93/21966 a~ ~ ~ ~ ~ ~ PC,'T/US93/0367t:..~
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W~ 93121966 _ ~ ~ ~ ~ ~ °~ ~ PG'd'/i1S93/fl3678 1, S ~ , z~~xp ~xsp~as~~
~ ~xog T~ ~rrr=oar Thin invention relates to a drip dispenser for dispensing fluids, particularly detergents, antiseptics, and fragrance enhancers, to t~ilets and the life.
1 S B~I,~G~.o'~'b~ of T» TIOh1 Most drip dispensers include a backplate and a front cover. The front cover is wither hinged to the backplate by a single risible and acc~s~ible hinge or is removable. The cover conceals a reservoir which receives a liquid to be dispensed , 20 and incorporates a delivery system that allows,the liquid to be dispensed slowly, nar~nally a drop at a time. because most drip dispensers have more than oxae mad~r component, the joining of these components with some tie of fastening device or material i~ typically required.
~5 'Va~:ious attempts hare beer, made to overcome the disad~raa~tages of ~nulti-piece coaa~truc~ion. Coe~cially av~~.l~ble dispensers inco~pora~~: a gix~gle living hinge to achieve a single m~lding c~bjee~ive. However, this hinge, which attaches a backplate to a cover; is visible wrhen the dispenser 90 is in a mounted positiono Additionally, there is an unsightly opening betv~een the cover and the baekplate aloag the side apposite to the hinge and along the top and the bottox~ of the dispenser. The hinge becoanes iracreasingly unsightly with age ~::.
and V~~ar a 35 Tampering is axao~her problem to rah3ch drip dispensers S
are susceptible. Tampering typically results in loss of the contents of the dispenser and,~or damage to the dispenser ;.:.. . - , ... . ,.
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~Y~ 93/21966 a~ ~ ~ ~ ~ ~ PC,'T/US93/0367t:..~
' itself. Consequently, most drip dispensers incorporate some type of locking device. Typically, locking devices require obvious holes ar gaps in the body of the dispenser where a key or some other tool is inserted.
The dispenser described above, for example, has a small widened area at the ~unctioh'of the backplate and the ' cover into which a tool is inserted to release the cover from a catch attached to the backplate~., Because the opening is readily visible and accessible, the cover can be pried open with a screwdriver or the like.
Other commercially available dispensers require a key ~r a sgecial tool to open the unit. The key is inserted into a hole ia~ the bottom of the dispenser. However, such dispensers are susceptible to ~pening when they are hit sharply in an 1,5 upward direction. ~lt~rnatively,~ the key opening may become plugged. thereby preventing servicing of the dispenser.
The drip dispenser of the present invention,is manu~ac~ured from a one apiece molding wherein the cover c~a~npletely covers the ba~kplate and the reservoir. The cover fits. flush with any support on which the dispenser is mounted, and there are no ~risibZe hinges or openings in the mounted di~penser other than an outlet from the reservoir for the liquid that is t~ ~e dispensed. ~, cover locking means is completely unadcessible when the dispenser cover is in the ~5 closed position. The ihterior is ~nly accessible by the kzlowledgeable applica~tio~ of pressure to lift the cover slightly froma the bs.ckplate along an unhinged edge and by inserting a suitable tool to disengage the hidden cover lock.
The dispenser described above, for example, has a small widened area at the ~unctioh'of the backplate and the ' cover into which a tool is inserted to release the cover from a catch attached to the backplate~., Because the opening is readily visible and accessible, the cover can be pried open with a screwdriver or the like.
Other commercially available dispensers require a key ~r a sgecial tool to open the unit. The key is inserted into a hole ia~ the bottom of the dispenser. However, such dispensers are susceptible to ~pening when they are hit sharply in an 1,5 upward direction. ~lt~rnatively,~ the key opening may become plugged. thereby preventing servicing of the dispenser.
The drip dispenser of the present invention,is manu~ac~ured from a one apiece molding wherein the cover c~a~npletely covers the ba~kplate and the reservoir. The cover fits. flush with any support on which the dispenser is mounted, and there are no ~risibZe hinges or openings in the mounted di~penser other than an outlet from the reservoir for the liquid that is t~ ~e dispensed. ~, cover locking means is completely unadcessible when the dispenser cover is in the ~5 closed position. The ihterior is ~nly accessible by the kzlowledgeable applica~tio~ of pressure to lift the cover slightly froma the bs.ckplate along an unhinged edge and by inserting a suitable tool to disengage the hidden cover lock.
3 0 I~FtIEFDESCRIPTION OF THE DRA~INOS
Figure 1 ie a perapective view of a drip dispenser constructed according to the present invention; , ~~,_::_.
Figure 2~ is a front elevational view of a one piece molded drip dispenser es removed from the mold;
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. WO 93/21966 ECT/US93/03678 3 , Figure ~B is a sectional view taken along the line 2B-2B shown in Figure 2~r;
Figure 3 is a horizontal cross-sectional detail view i of a drip dispenser constructed according to the present j invention with the trif~ld hinge in an unfolded position; !
Figure 4 is a horizontal cross-sectional detail view ' of a drip dispenser constructed according to the present invention showing a trifolc3 hinge in the trifolded position;
Figure 5 i,s a detail view of the cover lock in an ~.0 enlarged scab as removed from the mold;
Figure 6 is a perspective exploded view of the cover lacking elements of the pre$ent ixaventiond Figure 6.~ is a perspective exploded view of a cover lacking means receptacle df the present invention;
Eigxare 7 is a perspective view, with parts broken away for clarity, of a reservoir of a,drip dispenser constructed according to the present invention;
Figure 8 is a vertical cross-sectional detail view of the ~~servoir ports~n show in Figux~ ~:
Figure 9 is an eacploded detail perspective view of the drip dispenser dispensing tube; ' gigure 9A is a perspective view of a dispensing tube locking means;
Figure 9B is a top view of a dispensing tube locking means;
giguz.e ~,0 is a perspective view of the bottom portion of the drip dispenser;
Figure 1~. is a perspective detail view, with parts removed for clarity, of the liquid container support mesas and liquid container of,the drip dispenser;
Figure 12 is an ~acpaoded view of the valve arrangent for the l~tquid container of the drip dispenser;
Figure 12,A is a perspective view of an integrated spring and plunger of a valve arrangement foe the liquid container of the drip dispenser; and Figure 13 is a perspective cross-sectional view of z-shaped cover louvers of the drip dispenser.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a drip dispenser comprising:
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge and a hinge bearing longitudinal edge;
and (b) a cover having a first longitudinal edge and a hinge bearing longitudinal edge;
said backplate and said cover being joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position at which said cover hinge bearing longitudinal edge is flush with any support on which said dispenser is secured and a trifolded position at which said cover extends across and completely covers said backplate, said cover having edges which are flush with said backplate when said cover is in the trifolded position, whereby said hinge is covered by said cover.
According to the present invention, there is also provided a drip dispenser comprising:
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge having at least one cover locking means, a hinge bearing longitudinal edge, at least one hinge locking port, and a liquid storage container support means;
(b) a liquid reservoir attached to said backplate, said liquid reservoir having a drip outlet for dispensing a liquid from said dispenser;
and (c) a cover having a first longitudinal edge, a hinge bearing longitudinal edge having at least one hinge locking means, and at least one covering locking means receptacle;
4a wherein said backplate and said cover are joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position by inserting said hinge locking means into said hinge locking port and in a trifolded position at which said cover completely covers said backplate and said reservoir, at which said cover is flush with any support on which said dispenser is secured with no spaces or hinges visiblE~, and at which said cover locking means engages said cover locking means receptacle.
A preferred embodiment comprises the backplate and cover above.
In a further preferred embodiment, the drip outlet is in communication with a dispensing means comprising a lockable dispensing tubE~.
The lockable dispensing tube comprises (a) a hollow tube having at least one annular or semi-annular groove around at least a portion of the outE:r circumference of the tube which is adapted to engage a locking means, and (b) a i N.
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!~~ 93/21966 - PCT/US93/03678 locking means attached to the dispenser to engage the groove of the tube so that the tube cannot be moved along its length with respect to the locking means.
S D~°7P'AaCI~D D~SCR~PTIO~T OF TES fTI~ I
Figures 1-13 illustrate, in schematic, pexspeative and cross°sectional views, a drip dispenser (1) constructed according to the present invention.
Figure 1 illustrates the drip dispenser (1) with the caver (3) in the closed positios~. The backplate (5) (Fig. 3), the reservoir (?) (Fig. ?) and the trifold hinge (9) (Fig. 3), which is ~.n the trifold position, are concealed from view and access by the cover (3): The only visible openings (11, 13) in the cover are at the gaoint a~ r~ahich the dispensing tube ('S3 ) passes through the cover (3) (see else Fig. 10) or the louvers ( 1? ) .
Access to the interior ~f the dispenser through the louvers, however, i:s severely restricted by the Z-shaped overlapping canfiguratio~ of the louvers as illustrated in Figure 13. 'this arrang~en~ lessens the possibility of anyane inser~ir~g any faxeign matter or an instrument through the louvers to pierce a liquid container inside the dispenser. The Z-shape of the louvers does not impede the flow of any ~ fragrance from with3.n the dispenser but the averlap of each 3.ndi~rid~al louvre creates a curved path that is difficult for a straight instrument such a~ a needle or an icepick to travel to contact the liquid container. The louvers can. optionally be reinforced with a rib (18) or the like.
Figures 2~ and 2B illustrate the drip dispenser as it is taken from the mold. The drip dispenser is preferably molded as one piece, eliminating any Seed for subsequent ~oini~g of components . l~ssembly is easy as the parts can not °~
become detached or lost. Furthermore, ~ne piece m~lding is relatively inexpensive.
PCT/US931~3678r,..: '.
'V4'd? 93/21966 213 3.~'~ 5 Figures 3 and ~ illustrate the construction of the backplate (5) and the cover (3) and their connection through i the trifold hinge (9). The backplate (5) preferably is i comprised of a flat section (19), a first longitudinal edge (21) and a hinge bearing longitudinal edge (23), either or both of which may be disposed at an angle.vaith respect to the flat = r section .(19). F~oles (25) may be pxo~ided in the backplate and ;
preferably in the flat section (19~' for mounting purposes, such as for the recept~.on of a screw ~or a nail.
lp The hinge bearing longitudinal edge (23) of the backplate (5) is provided with at least one hinge locking port (37) .
The trifold hinge (9) is preferably a living hinge,.
(i.e., made of the saane material as the plastic dispenser, but in a thinner cross section) and is provided with one or more spaced hinge locking means (39) which, when the hiage is folded along a first fold like (41), are received in one or more corresponding hinge locking ports (37). Preferably, hinge locking means (39) are of a clip type, having a beveled surface (39~) as illustrated in Figure 4. The hinge lock prevents the tri~old hinge side of the cover from being pivoted away from any support to wh~.ch the dispenser is secured. This effectively prevents a cover in a closed and locked position from beiaag disengaged by movement of the cover alone irrespective of any cover locking means as described below.
Figure 4 illustrates the trifold hinge (9) in closed position, which is folded along second fold line (43) and third y fold lime (45) to achieve the trifolded position. In this , position, the cover (3) straddles (i.e., covers) both longitudinal edges (21, 23) of the backplate (5).
~dd~.tionally as seen in Figure 3, all hinge folds i will b~ either interior to the cover or will be facing the ::..
suppoxt to which the.backplate is attached,.and therefore, will aao,t be visible or accessible to anyone viewing the mounted drip dispenser. ;
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."~ _ ~~33g75 9,V0 93/21965 PC°f/LJS93/03678 y The cover locking system is illustrated in Figures 5, and 6A. The first longitudinal edge (21) of the backplate is rovided with at least one cover lacking means (27). The p i cover locking means (27) is molded in any manner know to those of ordinary skill in the art. Preferably, it is molded in the plane of the flat section (19) of the backplate (5) and is rotated approximately 90° to a locking position around a hinge (~9) that is preferably a living hinge. The cover locking means (27) preferably is a two prong clip type having tips (28) that extend outwardly of the arms (30) wherein pressure can be applied to the arms to compxess them, preferably with a key (6'7), to release the cover as explained below.
' The cover locking means (27) is adapted to engage a cover locking means receptacle (~7) located on the interior of the cover (3). A preferred cover locking means receptacle is illustrated in Figure 6A and comprises a thin shelf or wall-like structure (47a). The cover locking means receptacles are preferably used in cooperation with the two prong clip type cover locking means described above. They are sized and ~roportion.ed to be positioned below the tips of the arms of the receptacle prongs by a preselected distance when in the locked posi~3on. This permits the cover to be moved slightly away from the back support in the closed position. The receptacles may be tapered and typically force the ax~.s of the prongs and therefore the prongs together when the receptacle meets the docking means tips. When the prong tips are compressed, the receptacle can pass to a position below the tips. Once the tips pass the receptacle, the arms. and therefore, the prongs return to their for~naer position, moving the tips to a position ' overlying the receptacles and creating the lock. The length of the arms is preferably slightly longer than the shortest ;:
s.:
distance between the bottom of the lock (27) and the locking means receptacle so that the cover can be opened slightly without unlocking ~.t or unfolding the trifold hinge along the G
third fold line in order to facilitate opening. After the , ~V~ 93!21966 ~ ~ ~ ~ ~ ~ PC.'T/US93/036?~' ' -- : -_ 8 cover is moved slightly, Preferably by the application of knowledgeable pressure so as to displace the locking side of '.
the cover from the backplate slightly, a tool or key (67) can be inserted to pinch the clip type retainer together. The opening (68) between the, legs of the key (67) tapers inwardly so that as the key is pushed around-the lock arms the tips (28) of the arms (30) of the lock movetoward each other until they clear the locking means receptacle (47). Thus, the cover can now be swung to the open position about the trifold hinge.
Therefore, no locking means is visible from the outside.
Figures 7 and 8 illustrate the construction of the reservoir (7). The reservoir (7) is attached ico the backplate (5), preferably through a living hinge (49). Tn a typical molding operation, the reser~r~ir is m~lded at a 90 degree angle with respect to its operating position in the dispenser and is rotated about this hinge (49) to its operating position.
Optional means can be provided in the baseplate to secure the reservoir in its operating position.
The reservoir (7) receives a liquid from the lic;uid conta~.ner (33) and dispenses the liquid through a drip outlet (51). Preferably, the drip outlet (51) is at~ the lowest point of the reservoir (7) and is in communication with a dispensing tot's (53) .
In a preferred embodiment, the reservoir is. comprised ~5 of two chambers (59, 61). The first chamber (59) receives the liquid directly frog the liquid container (33). The liquid is then transferred to the second chamber (61) by means of a wick (63) or the like. The second chamber (61) includes the drag outlet (51) through which the liquid gasses out of the dispenser. The length or the number of wicks can be adapted to increase or to decrease the rate of flow. .~ shorter wick provides faster drip action. Preferred wicks are comprised of s cottow rope-like materials.
The dispensing tube (53) preferably is locked into , position by a locking means (55) which prevents axial movement ~rt~ i::.
~j 33~ ~~
Figure 1 ie a perapective view of a drip dispenser constructed according to the present invention; , ~~,_::_.
Figure 2~ is a front elevational view of a one piece molded drip dispenser es removed from the mold;
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~I339~5 ;.
. WO 93/21966 ECT/US93/03678 3 , Figure ~B is a sectional view taken along the line 2B-2B shown in Figure 2~r;
Figure 3 is a horizontal cross-sectional detail view i of a drip dispenser constructed according to the present j invention with the trif~ld hinge in an unfolded position; !
Figure 4 is a horizontal cross-sectional detail view ' of a drip dispenser constructed according to the present invention showing a trifolc3 hinge in the trifolded position;
Figure 5 i,s a detail view of the cover lock in an ~.0 enlarged scab as removed from the mold;
Figure 6 is a perspective exploded view of the cover lacking elements of the pre$ent ixaventiond Figure 6.~ is a perspective exploded view of a cover lacking means receptacle df the present invention;
Eigxare 7 is a perspective view, with parts broken away for clarity, of a reservoir of a,drip dispenser constructed according to the present invention;
Figure 8 is a vertical cross-sectional detail view of the ~~servoir ports~n show in Figux~ ~:
Figure 9 is an eacploded detail perspective view of the drip dispenser dispensing tube; ' gigure 9A is a perspective view of a dispensing tube locking means;
Figure 9B is a top view of a dispensing tube locking means;
giguz.e ~,0 is a perspective view of the bottom portion of the drip dispenser;
Figure 1~. is a perspective detail view, with parts removed for clarity, of the liquid container support mesas and liquid container of,the drip dispenser;
Figure 12 is an ~acpaoded view of the valve arrangent for the l~tquid container of the drip dispenser;
Figure 12,A is a perspective view of an integrated spring and plunger of a valve arrangement foe the liquid container of the drip dispenser; and Figure 13 is a perspective cross-sectional view of z-shaped cover louvers of the drip dispenser.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a drip dispenser comprising:
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge and a hinge bearing longitudinal edge;
and (b) a cover having a first longitudinal edge and a hinge bearing longitudinal edge;
said backplate and said cover being joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position at which said cover hinge bearing longitudinal edge is flush with any support on which said dispenser is secured and a trifolded position at which said cover extends across and completely covers said backplate, said cover having edges which are flush with said backplate when said cover is in the trifolded position, whereby said hinge is covered by said cover.
According to the present invention, there is also provided a drip dispenser comprising:
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge having at least one cover locking means, a hinge bearing longitudinal edge, at least one hinge locking port, and a liquid storage container support means;
(b) a liquid reservoir attached to said backplate, said liquid reservoir having a drip outlet for dispensing a liquid from said dispenser;
and (c) a cover having a first longitudinal edge, a hinge bearing longitudinal edge having at least one hinge locking means, and at least one covering locking means receptacle;
4a wherein said backplate and said cover are joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position by inserting said hinge locking means into said hinge locking port and in a trifolded position at which said cover completely covers said backplate and said reservoir, at which said cover is flush with any support on which said dispenser is secured with no spaces or hinges visiblE~, and at which said cover locking means engages said cover locking means receptacle.
A preferred embodiment comprises the backplate and cover above.
In a further preferred embodiment, the drip outlet is in communication with a dispensing means comprising a lockable dispensing tubE~.
The lockable dispensing tube comprises (a) a hollow tube having at least one annular or semi-annular groove around at least a portion of the outE:r circumference of the tube which is adapted to engage a locking means, and (b) a i N.
~I3397~
!~~ 93/21966 - PCT/US93/03678 locking means attached to the dispenser to engage the groove of the tube so that the tube cannot be moved along its length with respect to the locking means.
S D~°7P'AaCI~D D~SCR~PTIO~T OF TES fTI~ I
Figures 1-13 illustrate, in schematic, pexspeative and cross°sectional views, a drip dispenser (1) constructed according to the present invention.
Figure 1 illustrates the drip dispenser (1) with the caver (3) in the closed positios~. The backplate (5) (Fig. 3), the reservoir (?) (Fig. ?) and the trifold hinge (9) (Fig. 3), which is ~.n the trifold position, are concealed from view and access by the cover (3): The only visible openings (11, 13) in the cover are at the gaoint a~ r~ahich the dispensing tube ('S3 ) passes through the cover (3) (see else Fig. 10) or the louvers ( 1? ) .
Access to the interior ~f the dispenser through the louvers, however, i:s severely restricted by the Z-shaped overlapping canfiguratio~ of the louvers as illustrated in Figure 13. 'this arrang~en~ lessens the possibility of anyane inser~ir~g any faxeign matter or an instrument through the louvers to pierce a liquid container inside the dispenser. The Z-shape of the louvers does not impede the flow of any ~ fragrance from with3.n the dispenser but the averlap of each 3.ndi~rid~al louvre creates a curved path that is difficult for a straight instrument such a~ a needle or an icepick to travel to contact the liquid container. The louvers can. optionally be reinforced with a rib (18) or the like.
Figures 2~ and 2B illustrate the drip dispenser as it is taken from the mold. The drip dispenser is preferably molded as one piece, eliminating any Seed for subsequent ~oini~g of components . l~ssembly is easy as the parts can not °~
become detached or lost. Furthermore, ~ne piece m~lding is relatively inexpensive.
PCT/US931~3678r,..: '.
'V4'd? 93/21966 213 3.~'~ 5 Figures 3 and ~ illustrate the construction of the backplate (5) and the cover (3) and their connection through i the trifold hinge (9). The backplate (5) preferably is i comprised of a flat section (19), a first longitudinal edge (21) and a hinge bearing longitudinal edge (23), either or both of which may be disposed at an angle.vaith respect to the flat = r section .(19). F~oles (25) may be pxo~ided in the backplate and ;
preferably in the flat section (19~' for mounting purposes, such as for the recept~.on of a screw ~or a nail.
lp The hinge bearing longitudinal edge (23) of the backplate (5) is provided with at least one hinge locking port (37) .
The trifold hinge (9) is preferably a living hinge,.
(i.e., made of the saane material as the plastic dispenser, but in a thinner cross section) and is provided with one or more spaced hinge locking means (39) which, when the hiage is folded along a first fold like (41), are received in one or more corresponding hinge locking ports (37). Preferably, hinge locking means (39) are of a clip type, having a beveled surface (39~) as illustrated in Figure 4. The hinge lock prevents the tri~old hinge side of the cover from being pivoted away from any support to wh~.ch the dispenser is secured. This effectively prevents a cover in a closed and locked position from beiaag disengaged by movement of the cover alone irrespective of any cover locking means as described below.
Figure 4 illustrates the trifold hinge (9) in closed position, which is folded along second fold line (43) and third y fold lime (45) to achieve the trifolded position. In this , position, the cover (3) straddles (i.e., covers) both longitudinal edges (21, 23) of the backplate (5).
~dd~.tionally as seen in Figure 3, all hinge folds i will b~ either interior to the cover or will be facing the ::..
suppoxt to which the.backplate is attached,.and therefore, will aao,t be visible or accessible to anyone viewing the mounted drip dispenser. ;
1:' .
E ::.
."~ _ ~~33g75 9,V0 93/21965 PC°f/LJS93/03678 y The cover locking system is illustrated in Figures 5, and 6A. The first longitudinal edge (21) of the backplate is rovided with at least one cover lacking means (27). The p i cover locking means (27) is molded in any manner know to those of ordinary skill in the art. Preferably, it is molded in the plane of the flat section (19) of the backplate (5) and is rotated approximately 90° to a locking position around a hinge (~9) that is preferably a living hinge. The cover locking means (27) preferably is a two prong clip type having tips (28) that extend outwardly of the arms (30) wherein pressure can be applied to the arms to compxess them, preferably with a key (6'7), to release the cover as explained below.
' The cover locking means (27) is adapted to engage a cover locking means receptacle (~7) located on the interior of the cover (3). A preferred cover locking means receptacle is illustrated in Figure 6A and comprises a thin shelf or wall-like structure (47a). The cover locking means receptacles are preferably used in cooperation with the two prong clip type cover locking means described above. They are sized and ~roportion.ed to be positioned below the tips of the arms of the receptacle prongs by a preselected distance when in the locked posi~3on. This permits the cover to be moved slightly away from the back support in the closed position. The receptacles may be tapered and typically force the ax~.s of the prongs and therefore the prongs together when the receptacle meets the docking means tips. When the prong tips are compressed, the receptacle can pass to a position below the tips. Once the tips pass the receptacle, the arms. and therefore, the prongs return to their for~naer position, moving the tips to a position ' overlying the receptacles and creating the lock. The length of the arms is preferably slightly longer than the shortest ;:
s.:
distance between the bottom of the lock (27) and the locking means receptacle so that the cover can be opened slightly without unlocking ~.t or unfolding the trifold hinge along the G
third fold line in order to facilitate opening. After the , ~V~ 93!21966 ~ ~ ~ ~ ~ ~ PC.'T/US93/036?~' ' -- : -_ 8 cover is moved slightly, Preferably by the application of knowledgeable pressure so as to displace the locking side of '.
the cover from the backplate slightly, a tool or key (67) can be inserted to pinch the clip type retainer together. The opening (68) between the, legs of the key (67) tapers inwardly so that as the key is pushed around-the lock arms the tips (28) of the arms (30) of the lock movetoward each other until they clear the locking means receptacle (47). Thus, the cover can now be swung to the open position about the trifold hinge.
Therefore, no locking means is visible from the outside.
Figures 7 and 8 illustrate the construction of the reservoir (7). The reservoir (7) is attached ico the backplate (5), preferably through a living hinge (49). Tn a typical molding operation, the reser~r~ir is m~lded at a 90 degree angle with respect to its operating position in the dispenser and is rotated about this hinge (49) to its operating position.
Optional means can be provided in the baseplate to secure the reservoir in its operating position.
The reservoir (7) receives a liquid from the lic;uid conta~.ner (33) and dispenses the liquid through a drip outlet (51). Preferably, the drip outlet (51) is at~ the lowest point of the reservoir (7) and is in communication with a dispensing tot's (53) .
In a preferred embodiment, the reservoir is. comprised ~5 of two chambers (59, 61). The first chamber (59) receives the liquid directly frog the liquid container (33). The liquid is then transferred to the second chamber (61) by means of a wick (63) or the like. The second chamber (61) includes the drag outlet (51) through which the liquid gasses out of the dispenser. The length or the number of wicks can be adapted to increase or to decrease the rate of flow. .~ shorter wick provides faster drip action. Preferred wicks are comprised of s cottow rope-like materials.
The dispensing tube (53) preferably is locked into , position by a locking means (55) which prevents axial movement ~rt~ i::.
~j 33~ ~~
6 P(.'T/U~93/03678 ; . .
9 i i of the tube once it is in place and the cover is closed.. The dispensing tube (53) is illustrated in Figure 9. The tube is hollow and is provided with at least one annular or semi- ~.~
annular groove (57) around at least a portion of its ou~er circumference. A locking means (~55), further illustrated in ,. .
Figures 9A and 9~, has spaced arms ( 5 S ) vahi ch are preferably adapted to prevent the tube from being pulled from the , dispenser in the radial direction. The arms i56) may include supple~onentaxy retaining clips (58a) further adapted to hold the tube. The arms, the supplementar~r clips, or both are provided wrath opposed rails (58) ~o ~agage the groove so that the tube can not be moved along its length vaith respect to the locking means, Preferably, the locking ~e~ns is attached to the dispenser, and most preferably is attached to~the backplate, the cover, or a combination thereof through the single molda.ng process.
As seen ix: Figure 11, the backplate (5) is also ;
provided With a lipid c~ntai~ner support means (31) which is adapted to hold a liquid container (33) containing the liquid to b~ dispensed, in a p~sition so that it caa feed liquid to the reservoir (~)~ .8~ preferred liquid container contemplated by the present invention is molded to a shape similar to that of the interior spaa~ formed between the closed cover and the .
backplate. &~refex~ably, the eupp~rt means comprises. one or mare opposed arms (35) that are adapted to snap into grooves (57) on , the liquid container. In a further preferred embodiment, a cheek type valve or st~pper as illustrated in Figures 12 and 12A, comprising a plunger (7 3 ) , a spring ( ~ 5 ) , a cap ( 7'3 ) , and a a retaining saddle (79) (or a plvanger (~3). an integrated spring and retaining saddle (75a) and a cap (77)), is used to j close the lie~uid container (339 . The spring (75) normally t ..
biases the seal. (7~) ova the pluaiger (73) into sealing ~.:.
engagemexi;t with an opening (76) in the cap (~~) . The check ;_ stopper is adapted to coatrol the flow of any liqv,id (roan the ;. .
container.
dY0 9312166 ~ ~ ~ ~ PCT/U~93I0367e--.:
xa To begin the drip operation, the liquid container (33) containing the liquid to be dispensed is inserted in an w inverted position into the reservoir (7) and preferably into the first or receiving chamber (59) of the reservoir. This forces the plunger (73) upwardly .t'~a unseat the seal (74) .
Thus, chamber (59) fills with la.~c~.id until the outlet of the container is covered by the ~.ic~iid. At that point, no more air can pass into the container, .wind the flow of liquid from the container is stopped until the liquid level in the reservoir falls below this level and air can again enter the container.
The liquid passes from the first chaguber (59) to the second chamber (61) through the wick (63) aad.drips out of the drip outlet (51.) and thrdugh the dispensing tube (53).
The preferred material for construction of the drip dispenser is polypropylene because of its durability, law cost, flexibility, strength; and chemical resistance. however, other plastics with similar characteristics may be used as well.
The cover can be of any configuration as can the backplate.
Preferred material for canstruction of the dispensing tube is polyeth'~rlene.
Many variations' of tla.is invention will suggest themselves to those skilled in the art in light of the above, detailed description: A11 such obvious modifications are within the full int~nd~d sc~pe of the appended claims.
9 i i of the tube once it is in place and the cover is closed.. The dispensing tube (53) is illustrated in Figure 9. The tube is hollow and is provided with at least one annular or semi- ~.~
annular groove (57) around at least a portion of its ou~er circumference. A locking means (~55), further illustrated in ,. .
Figures 9A and 9~, has spaced arms ( 5 S ) vahi ch are preferably adapted to prevent the tube from being pulled from the , dispenser in the radial direction. The arms i56) may include supple~onentaxy retaining clips (58a) further adapted to hold the tube. The arms, the supplementar~r clips, or both are provided wrath opposed rails (58) ~o ~agage the groove so that the tube can not be moved along its length vaith respect to the locking means, Preferably, the locking ~e~ns is attached to the dispenser, and most preferably is attached to~the backplate, the cover, or a combination thereof through the single molda.ng process.
As seen ix: Figure 11, the backplate (5) is also ;
provided With a lipid c~ntai~ner support means (31) which is adapted to hold a liquid container (33) containing the liquid to b~ dispensed, in a p~sition so that it caa feed liquid to the reservoir (~)~ .8~ preferred liquid container contemplated by the present invention is molded to a shape similar to that of the interior spaa~ formed between the closed cover and the .
backplate. &~refex~ably, the eupp~rt means comprises. one or mare opposed arms (35) that are adapted to snap into grooves (57) on , the liquid container. In a further preferred embodiment, a cheek type valve or st~pper as illustrated in Figures 12 and 12A, comprising a plunger (7 3 ) , a spring ( ~ 5 ) , a cap ( 7'3 ) , and a a retaining saddle (79) (or a plvanger (~3). an integrated spring and retaining saddle (75a) and a cap (77)), is used to j close the lie~uid container (339 . The spring (75) normally t ..
biases the seal. (7~) ova the pluaiger (73) into sealing ~.:.
engagemexi;t with an opening (76) in the cap (~~) . The check ;_ stopper is adapted to coatrol the flow of any liqv,id (roan the ;. .
container.
dY0 9312166 ~ ~ ~ ~ PCT/U~93I0367e--.:
xa To begin the drip operation, the liquid container (33) containing the liquid to be dispensed is inserted in an w inverted position into the reservoir (7) and preferably into the first or receiving chamber (59) of the reservoir. This forces the plunger (73) upwardly .t'~a unseat the seal (74) .
Thus, chamber (59) fills with la.~c~.id until the outlet of the container is covered by the ~.ic~iid. At that point, no more air can pass into the container, .wind the flow of liquid from the container is stopped until the liquid level in the reservoir falls below this level and air can again enter the container.
The liquid passes from the first chaguber (59) to the second chamber (61) through the wick (63) aad.drips out of the drip outlet (51.) and thrdugh the dispensing tube (53).
The preferred material for construction of the drip dispenser is polypropylene because of its durability, law cost, flexibility, strength; and chemical resistance. however, other plastics with similar characteristics may be used as well.
The cover can be of any configuration as can the backplate.
Preferred material for canstruction of the dispensing tube is polyeth'~rlene.
Many variations' of tla.is invention will suggest themselves to those skilled in the art in light of the above, detailed description: A11 such obvious modifications are within the full int~nd~d sc~pe of the appended claims.
Claims (13)
1. A drip dispenser comprising:
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge and a hinge bearing longitudinal edge;
and (b) a cover having a first longitudinal edge and a hinge bearing longitudinal edge;
said backplate and said cover being joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position at which said cover hinge bearing longitudinal edge is flush with any support on which said dispenser is secured and a trifolded position at which said cover extends across and completely covers said backplate, said cover having edges which are flush with said backplate when said cover is in the trifolded position, whereby said hinge is covered by said cover.
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge and a hinge bearing longitudinal edge;
and (b) a cover having a first longitudinal edge and a hinge bearing longitudinal edge;
said backplate and said cover being joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position at which said cover hinge bearing longitudinal edge is flush with any support on which said dispenser is secured and a trifolded position at which said cover extends across and completely covers said backplate, said cover having edges which are flush with said backplate when said cover is in the trifolded position, whereby said hinge is covered by said cover.
2. A drip dispenser comprising:
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge having at least one cover locking means, a hinge bearing longitudinal edge, at least one hinge locking port, and a liquid storage container support means;
(b) a liquid reservoir attached to said backplate, said liquid reservoir having a drip outlet for dispensing a liquid from said dispenser;
and (c) a cover having a first longitudinal edge, a hinge bearing longitudinal edge having at least one hinge locking means, and at least once covering locking means receptacle;
wherein said backplate and said cover are joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position by inserting said hinge locking means into said hinge locking port and in a trifolded position at which said cover completely covers said backplate and said reservoir, at which said cover is flush with any support on which said dispenser is secured with no spaces or hinges visible, and at which said cover locking means engages said cover locking means receptacle.
(a) a backplate for securing said dispenser to a support, said backplate having a first longitudinal edge having at least one cover locking means, a hinge bearing longitudinal edge, at least one hinge locking port, and a liquid storage container support means;
(b) a liquid reservoir attached to said backplate, said liquid reservoir having a drip outlet for dispensing a liquid from said dispenser;
and (c) a cover having a first longitudinal edge, a hinge bearing longitudinal edge having at least one hinge locking means, and at least once covering locking means receptacle;
wherein said backplate and said cover are joined along their respective hinge bearing longitudinal edges by a trifold hinge which can be maintained in a single folded position by inserting said hinge locking means into said hinge locking port and in a trifolded position at which said cover completely covers said backplate and said reservoir, at which said cover is flush with any support on which said dispenser is secured with no spaces or hinges visible, and at which said cover locking means engages said cover locking means receptacle.
3. A drip dispenser as defined in claim 2, wherein said drip outlet is in communication with a dispensing means comprising:
(a) a hollow tube having at least one annular or semi-annular groove around at least a portion of the outer circumference of said tube, said groove being adapted to engage a locking means; and (b) a locking means attached to said dispenser, said locking means being adapted to engage said groove of said tube so that said tube cannot be moved along its length with respect to said locking means.
(a) a hollow tube having at least one annular or semi-annular groove around at least a portion of the outer circumference of said tube, said groove being adapted to engage a locking means; and (b) a locking means attached to said dispenser, said locking means being adapted to engage said groove of said tube so that said tube cannot be moved along its length with respect to said locking means.
4. A drip dispenser as defined in claim 3, wherein said reservoir comprises a first chamber for receiving liquid from a liquid container and a second chamber having said drip outlet in communication with said dispensing means, said two chambers being in communication through a wick adapted to draw a liquid from said first chamber to said second chamber.
5. A drip dispenser as defined in claim 2, that is one piece.
6. A drip dispenser as defined in claim 5, that is molded.
7. A drip dispenser as defined in claim 2, comprising polypropylene.
8. A drip dispenser as defined in claim 2, wherein said liquid container support means comprises arms adapted to lock into corresponding grooves on a liquid storage container.
9. A drip dispenser as defined in claim 2, wherein said cover comprises Z-shaped louvers.
10. A drip dispenser as defined in claim 3, wherein said tube comprises polyethylene.
11. A drip dispenser as defined in claim 1, further comprising a liquid container adapted lock onto said liquid container support means.
12. A drip dispenser as defined in claim 8, wherein said liquid container is capped by a check stopper mechanism adapted to control the flour of any liquid from said container.
13. A drip dispenser as defined in claim 2, wherein said cover locking means comprises two prongs, said prongs each having an arm and a tip that extends outwardly of the arm, and said cover locking means receptacle being sized and proportioned to be positioned below said tips of said arms when in the locked position, but wherein said cover may be moved a distance sufficient to permit the insertion of a key to compress said arms, and therefore said tips, to unlock said cover.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/871,900 | 1992-04-21 | ||
| US07/871,900 US5271560A (en) | 1992-04-21 | 1992-04-21 | Drip dispenser |
| PCT/US1993/003678 WO1993021966A1 (en) | 1992-04-21 | 1993-04-19 | Drip dispenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2133975A1 CA2133975A1 (en) | 1993-11-11 |
| CA2133975C true CA2133975C (en) | 2005-07-05 |
Family
ID=25358409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002133975A Expired - Fee Related CA2133975C (en) | 1992-04-21 | 1993-04-19 | Drip dispenser |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US5271560A (en) |
| EP (1) | EP0644779B1 (en) |
| AU (1) | AU4107493A (en) |
| CA (1) | CA2133975C (en) |
| DE (1) | DE69326763T2 (en) |
| GB (1) | GB2275418B (en) |
| WO (1) | WO1993021966A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5449117A (en) * | 1993-10-04 | 1995-09-12 | Technical Concepts, L.P. | Apparatus and method for controllably dispensing drops of liquid |
| WO1997031563A1 (en) * | 1996-02-28 | 1997-09-04 | Borcherds Cedric M | Cosmetic dispenser |
| US6082593A (en) * | 1997-02-27 | 2000-07-04 | Jean Charles, Inc. | Low maintenance cosmetic dispenser with a slideable nozzle hood |
| IL122770A0 (en) | 1997-12-25 | 1998-08-16 | Gotit Ltd | Automatic spray dispenser |
| BR0015427B1 (en) * | 1999-11-02 | 2009-01-13 | liquid dispensing devices. | |
| US6808090B2 (en) * | 2002-03-21 | 2004-10-26 | Oeyvind Pedersen | Container and container support |
| US6659301B2 (en) * | 2002-04-08 | 2003-12-09 | Waldwick Plastics Inc. | Liquid vaporization device and bottle |
| US7066356B2 (en) * | 2002-08-15 | 2006-06-27 | Ecolab Inc. | Foam soap dispenser for push operation |
| US20040176262A1 (en) * | 2002-09-18 | 2004-09-09 | Hammock Cory S. | Methods and compositions for drains and delivery lines |
| US20060110144A1 (en) * | 2004-11-09 | 2006-05-25 | Fellows Robert T | Bottle for liquid vaporization device |
| US8720107B1 (en) * | 2006-04-11 | 2014-05-13 | Vm Products Inc. | Tamper-resistant fly control station and methods for using the same |
| US20090151061A1 (en) * | 2007-12-12 | 2009-06-18 | Cheng-Chang Chen | Urinal assembly |
| DE102008002957A1 (en) * | 2008-07-22 | 2010-01-28 | Evonik Stockhausen Gmbh | Dispensing system for the portion-wise dispensing of pasty, liquid, gaseous and / or foamed media |
| USD667526S1 (en) | 2010-02-10 | 2012-09-18 | Larry Covington | Bait station |
| US11787684B2 (en) * | 2021-11-04 | 2023-10-17 | Joshua Truby | Device for a touch-free operation of a fuel pump nozzle |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US681100A (en) * | 1900-09-15 | 1901-08-20 | Rochester Germicide Co | Disinfectant-holder. |
| US893208A (en) * | 1908-02-08 | 1908-07-14 | John R Van Dyne | Disinfecting apparatus. |
| US975925A (en) * | 1910-08-20 | 1910-11-15 | Charles F Amsler | Disinfecting apparatus. |
| US1096143A (en) * | 1913-01-11 | 1914-05-12 | Joseph Williams | Disinfecting apparatus. |
| US1099720A (en) * | 1913-04-07 | 1914-06-09 | L B Alford | Disinfecting apparatus. |
| US2238935A (en) * | 1938-09-01 | 1941-04-22 | Gumaer Perey Wilcox | Constant evaporation process and apparatus |
| US2201784A (en) * | 1939-02-27 | 1940-05-21 | Roy A Myers | Disinfector |
| US2251734A (en) * | 1939-07-20 | 1941-08-05 | Fuld | Diffusion and drip apparatus |
| US2647798A (en) * | 1948-03-31 | 1953-08-04 | Edward D Ballard | Nozzle assembly for fire-fighting equipment |
| US4513885A (en) * | 1979-05-04 | 1985-04-30 | Cole-Parmer Instrument Company | Dispenser having a flexible fluid container and a rotor compressible fluid discharge tube |
| US4621749A (en) * | 1984-02-21 | 1986-11-11 | Go-Jo Industries | Dispensing apparatus |
| US4919322A (en) * | 1989-03-06 | 1990-04-24 | Fortune William S | Desoldering tip and replacement apparatus |
| US4967935A (en) * | 1989-05-15 | 1990-11-06 | Celest Salvatore A | Electronically controlled fluid dispenser |
| US5115951A (en) * | 1991-01-23 | 1992-05-26 | Sterling Drug, Inc. | Dispensing wand and combination of dispensing wand with container |
-
1992
- 1992-04-21 US US07/871,900 patent/US5271560A/en not_active Expired - Lifetime
-
1993
- 1993-04-19 WO PCT/US1993/003678 patent/WO1993021966A1/en active IP Right Grant
- 1993-04-19 DE DE69326763T patent/DE69326763T2/en not_active Expired - Fee Related
- 1993-04-19 CA CA002133975A patent/CA2133975C/en not_active Expired - Fee Related
- 1993-04-19 AU AU41074/93A patent/AU4107493A/en not_active Abandoned
- 1993-04-19 EP EP93910657A patent/EP0644779B1/en not_active Expired - Lifetime
- 1993-04-19 GB GB9405271A patent/GB2275418B/en not_active Expired - Fee Related
- 1993-09-21 US US08/124,951 patent/US5368200A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB2275418A (en) | 1994-08-31 |
| AU4107493A (en) | 1993-11-29 |
| GB9405271D0 (en) | 1994-06-15 |
| DE69326763T2 (en) | 2000-05-04 |
| EP0644779A4 (en) | 1995-08-02 |
| DE69326763D1 (en) | 1999-11-18 |
| US5271560A (en) | 1993-12-21 |
| WO1993021966A1 (en) | 1993-11-11 |
| EP0644779B1 (en) | 1999-10-13 |
| GB2275418B (en) | 1995-12-06 |
| EP0644779A1 (en) | 1995-03-29 |
| US5368200A (en) | 1994-11-29 |
| CA2133975A1 (en) | 1993-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |